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cond-mat.mes-hall2025★ 1 cited
Quantum geometry from the Moyal product: quantum kinetic equation and non-linear response
Takamori Park, Xiaoyang Huang, Lucile Savary +1
We systematically derive the dissipationless quantum kinetic equation for a multi-band free fermionic system with U(1) symmetry. Using the Moyal product formalism, we fully band-di…
cond-mat.str-el2025★ 3 cited
Identifying Instabilities with Quantum Geometry in Flat Band Systems
Jia-Xin Zhang, Wen O. Wang, Leon Balents +1
The absence of a well-defined Fermi surface in flat-band systems challenges the conventional understanding of instabilities toward Landau order based on nesting. We investigate the…
cond-mat.str-el2025
Analytic Formulas for the Anomalous Hall Effect in Itinerant Magnets
Lucile Savary
We clarify the origin of what is sometimes called the "topological anomalous Hall effect," provide analytical formulas to compute all the contributions to the Hall conductivity in…